<!DOCTYPE html>  
<html lang="en">  
<head>  
<meta charset="UTF-8">  
<meta name="viewport" content="width=device-width, initial-scale=1.0">  
<title>简单的HTML表单</title>  
</head>  
<body>  
  
<h1>联系表单</h1>  
  
<form action="/submit_form" method="post">  
  <label for="fname">名字:</label><br>  
  <input type="text" id="fname" name="fname" required><br>  
    
  <input type="submit" value="提交">  
</form>  
  
</body>  
</html>